Nasal cavity cleaner

Abstract

The utility model discloses a nasal cavity cleaner which comprises a main machine, a replaceable cleaning head and an air passing channel, the main machine comprises a shell and an air pump, and the air pump is arranged in the shell; the replaceable cleaning head is detachably connected with the main machine, and an air passing cavity is formed between the replaceable cleaning head and the main machine; the lower end of the replaceable cleaning head is provided with an air channel connector, one of the air inlet end and the air outlet end of the air pump is butted and communicated with the air channel connector, and the other one is communicated with the air passing cavity; the air passing channel is arranged on the replaceable cleaning head and provided with a first air channel opening and a second air channel opening which are communicated, the first air channel opening is formed in the outer wall face of the replaceable cleaning head and communicated with the outside, and the second air channel opening is communicated with the air passing cavity. According to the nasal cavity cleaner, the air inlet and outlet effect of the nasal cavity cleaner can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of nasal cavity cleaning, in particular to a nasal cavity cleaner. Background Art

[0002] The existing nasal cleaner directly inhales and exhausts air through the gap after the cleaning head and the main unit are installed, and the air inlet and outlet effects are poor. In addition, water that flows onto the outer wall of the nasal cleaner during operation will enter the inside of the nasal cleaner along the gap along the suction force of the air pump when it is working, causing water to enter the air pump, affecting the service life of the air pump, and entering the user's nasal cavity along with the action of the air pump, affecting the safety of the user when cleaning the nasal cavity, thereby reducing the user's experience and product satisfaction. Utility Model Content

[0003] The main purpose of the utility model is to provide a nasal cleaner to solve at least one technical problem raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model proposes a nasal cleaner, which includes a main unit, a replaceable cleaning head and an air passage, wherein the main unit includes a shell and an air pump, and the air pump is arranged in the shell; the replaceable cleaning head is detachably connected to the main unit, and an air passage cavity is formed between the replaceable cleaning head and the main unit; the lower end of the replaceable cleaning head has an air passage interface, one of the air inlet end of the air pump and the air outlet end of the air pump is connected to the air passage interface, and the other is connected to the air passage cavity; the air passage is arranged on the replaceable cleaning head, and the air passage has a first air passage opening and a second air passage opening that are connected to each other, the first air passage opening is arranged on the outer wall surface of the replaceable cleaning head and is connected to the outside world, and the second air passage opening is connected to the air passage cavity.

[0005] In one embodiment, the replaceable cleaning head includes a main body, the lower end of the main body is detachably connected to the upper end of the host, and the second airway opening is arranged at the bottom of the main body.

[0006] In one embodiment, a cross-sectional area of ​​the first airway opening is smaller than a cross-sectional area of ​​the second airway opening.

[0007] In one embodiment, the cross-sectional area of ​​the first airway opening is in the range of 0.1 mm 2 -3 mm 2 The cross-sectional area of ​​the second airway opening is 0.5 mm 2 -6 mm 2 .

[0008] In one embodiment, the air passage includes a first airway segment and a second airway segment that are connected and extend in different directions, one end of the first airway segment is the first airway opening, and the other end is connected to the second airway segment, and the other end of the second airway segment is the second airway opening.

[0009] In one embodiment, the first airway segment and the second airway segment are perpendicular to each other.

[0010] In one embodiment, the first air passage segment extends in a radial direction of the main body, and the second air passage segment extends in an axial direction of the main body.

[0011] In one embodiment, the second air duct segment has a first direction along the side wall of the main body toward the axis of the main body, and a second direction perpendicular to the first direction, and a span of the second air duct segment in the first direction is greater than a span of the second air duct segment in the second direction.

[0012] In one embodiment, the air passage is formed by penetrating from the outer wall of the replaceable cleaning head outer wall toward the inner wall surface of the replaceable cleaning head outer wall.

[0013] In one embodiment, the air passage extends along the axial direction of the replaceable cleaning head, and the air passage is gradually expanded from the first air passage opening to the second air passage opening.

[0014] In one embodiment, the nasal cavity cleaner further includes a touch control component, wherein the touch control component is disposed on one side of the shell, and the first airway opening is disposed on the other side of the shell.

[0015] In one embodiment, the first airway opening is located above the touch control component.

[0016] In one embodiment, the replaceable cleaning head is a nose wash head, and the air outlet end of the air pump is connected to the airway interface of the nose wash head.

[0017] In one embodiment, the nasal wash head includes a cup body and a cup cover, the cup cover covers the cup body to form a receiving chamber, a partition plate is provided in the receiving chamber, the partition plate divides the receiving chamber into a liquid storage chamber and a waste liquid chamber, and the first airway opening is provided on the cup body close to one side of the liquid storage chamber.

[0018] In one embodiment, the bottom of the accommodating chamber extends downwardly and obliquely from one side of the liquid storage chamber to one side of the waste liquid chamber, and the first airway opening is arranged corresponding to the highest point of the bottom of the accommodating chamber.

[0019] In one embodiment, the replaceable cleaning head is a nasal suction head, and the air inlet end of the air pump is connected to the airway interface of the nasal suction head.

[0020] The nasal cleaner of the utility model comprises a main body, a replaceable cleaning head and an air passage, wherein the main body comprises a shell and an air pump, and the air pump is arranged in the shell; the replaceable cleaning head is detachably connected to the main body, and an air passage cavity is formed between the replaceable cleaning head and the main body; the lower end of the replaceable cleaning head is provided with an air passage interface, one of the air inlet end of the air pump and the air outlet end of the air pump is connected to the air passage interface, and the other is connected to the air passage cavity; the air passage is arranged on the replaceable cleaning head, and the air passage has a first air passage opening and a second air passage opening which are connected to each other, the first air passage opening is arranged on the outer wall surface of the replaceable cleaning head and is connected to the outside, and the second air passage opening is connected to the air passage cavity. By setting one end of the air passage on the outer wall surface of the replaceable cleaning head, on the one hand, the air inlet and outlet effects of the nasal cleaner are improved. On the other hand, since the first airway opening is opened on the outer wall surface of the replaceable cleaning head, the outer wall surface of the replaceable cleaning head is a smooth plane. Water flowing to the outer wall surface of the replaceable cleaning head will flow downstream and will not easily flow into the interior of the nasal cleaner along the air passage, thereby preventing water from entering the air pump and ensuring the service life of the air pump. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.

[0022] Figure 1 This is a schematic structural diagram of an embodiment of the nasal cleaning device of the utility model;

[0023] Figure 2 for Figure 1 A schematic diagram of the structure of the replaceable cleaning head of the nasal cavity cleaner as a nose suction head;

[0024] Figure 3 for Figure 1 A schematic diagram of the structure of the replaceable cleaning head of the nasal cavity cleaner as a nasal washing head;

[0025] Figure 4 for Figure 3 Exploded diagram of the structure in;

[0026] Figure 5 for Figure 1 A cross-sectional view of a mid-nasal cleaner;

[0027] Figure 6 for Figure 5 a cross-sectional view of the middle structure with the outer cover removed;

[0028] Figure 7 for Figure 6Enlarged view of point A in the middle.

[0029] Description of Figure Numbers:

[0030]

[0031]

[0032] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0035] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, if the meaning of "and / or" appearing in the full text is to include three parallel schemes, taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0036] The utility model proposes an embodiment of a nasal cavity cleaner. The nasal cavity is another important channel for the human body to communicate with the outside world besides the oral cavity. Its frequency of use far exceeds that of the oral cavity because people need to breathe every moment. However, since the environment around us is not pure, some impurities and harmful substances are blocked in the nasal cavity by the filtering function of the nasal cavity when inhaled into the human body, so that they cannot enter the lungs. However, if these impurities and harmful substances are not cleaned in time and stay in the nasal cavity for a long time, more bacteria may be produced, thereby causing nasal lesions.

[0037] There are currently two types of electric nasal cleaners on the market. One is a flushing nasal washer, which can be used to treat problems such as rhinitis, and can also care for healthy nasal cavities. It mainly relies on the impact force of saline water flow to expel the pathogenic bacteria and dirt that have accumulated in the nasal cavity, restore the nasal cavity to a normal physiological environment, restore the nasal cavity's self-detoxification function, and achieve the purpose of protecting the nasal cavity. The nasal cavity can also be treated with liquid medicine; the other is an electric nasal aspirator, which is mainly used to suck out the snot for infants, babies and the elderly. Due to various reasons such as intelligence and physical condition, these people cannot or are not convenient to blow their noses by themselves. If the snot is not sucked out in time, it will block the nasal passage and cause breathing problems, so a nasal aspirator is needed to suck out the snot.

[0038] In response to the above two types of electric nasal cleaners, nasal cleaners with both nasal washing and nasal suction functions are now available on the market, that is, the same main unit is used, equipped with a nasal washing head and a nasal suction head, and the two can be switched, which is not only more convenient to carry, but also reduces the purchase cost. However, the existing nasal cleaners directly inhale and exhale air through the gap after the cleaning head and the main unit are installed, and the air inlet and outlet effects are poor. In addition, water that flows onto the outer wall of the nasal cleaner during operation will enter the inside of the nasal cleaner along the gap with the suction force of the air pump when it is working, causing water to enter the air pump, affecting the service life of the air pump, and entering the user's nasal cavity with the action of the air pump, affecting the safety of the user when cleaning the nasal cavity, thereby reducing the user's experience and product satisfaction.

[0039] See also Figure 1 and Figure 6In one embodiment of the utility model, the nasal cleaner 10 includes a main unit 100, a replaceable cleaning head 200 and an air passage 300, the main unit 100 includes a shell 110 and an air pump 120, the air pump 120 is arranged in the shell 110; the replaceable cleaning head 200 is detachably connected to the main unit 100, and an air passage 400 is formed between the replaceable cleaning head 200 and the main unit 100; the lower end of the replaceable cleaning head 200 has an air passage interface 220, one of the air inlet end of the air pump 120 and the air outlet end of the air pump 120 is connected to the air passage interface 220, and the other is connected to the air passage 400; the air passage 300 is arranged on the replaceable cleaning head 200, and the air passage 300 has a first air passage opening 310 and a second air passage opening 320 that are connected to each other, the first air passage opening 310 is arranged on the outer wall surface of the replaceable cleaning head 200 and is connected to the outside, and the second air passage opening 320 is connected to the air passage 400.

[0040] Specifically, the host 100 includes a housing 110 and an air pump 120 installed in the housing 110, and components such as a circuit board, a battery, a motor, and a touch control component 500 are also installed in the housing 110. By starting the control element of the nasal cleaner 10, the air pump 120 can be driven to work, and an air flow channel is formed between one of the air inlet end or the air outlet end of the air pump 120 and the inside of the replaceable cleaning head 200, and a high-speed airflow is generated inside the replaceable cleaning head 200. The replaceable cleaning head 200 is detachably connected to the host 100 to facilitate the replacement of the replaceable cleaning head 200. Among them, when the replaceable cleaning head 200 is installed with the host 100, an air cavity 400 is formed between the lower end of the replaceable cleaning head 200 and the upper end of the host 100, and one of the air inlet end of the air pump 120 and the air outlet end of the air pump 120 is connected to the airway interface 220 of the replaceable cleaning head 200, and the other is connected to the air cavity 400.

[0041] See also Figure 6 and Figure 7 Specifically, an air passage 300 is provided on the replaceable cleaning head 200, and the two ends of the air passage 300 are respectively a first air passage opening 310 and a second air passage opening 320, wherein the first air passage opening 310 can be used as an air flow inlet or an air flow outlet. The first air passage opening 310 is provided on the outer wall surface of the replaceable cleaning head 200 to improve the air inlet and outlet effects of the nasal cavity cleaner 10. At the same time, since the first air passage opening 310 is provided on the outer wall surface of the replaceable cleaning head 200, the outer wall surface of the replaceable cleaning head 200 is a smooth plane, and water flowing to the outer wall surface of the replaceable cleaning head 200 will flow downstream, and it is not easy to flow into the nasal cavity cleaner 10 along the air passage 300, thereby preventing water from entering the air pump 120 and ensuring the service life of the air pump 120.

[0042] See also Figures 1 to 4The nasal cleaner 10 further includes an outer cover 600, which is a roughly cylindrical outer cover with one end open. The outer cover 600 can detachably cover the housing 110. The touch component 500 is disposed on the housing 110, so the outer cover 600 can also cover the touch component 500. When the nasal cleaner 10 is not in use, the user will not touch the touch component 500, so that the touch component 500 will not be accidentally triggered to start the nasal cleaner 10. At the same time, the touch component 500 can also be protected from collision damage, especially for components such as LCD screens that are more easily damaged by collision. Further, the replaceable cleaning head 200 can also be protected from contact contamination.

[0043] See also Figure 3 and Figure 4 In one embodiment, the replaceable cleaning head 200 includes a main body 210, the lower end of the main body 210 is detachably connected to the upper end of the host 100, and the second airway port 320 is arranged at the bottom of the main body 210. Specifically, the main body 210 of the replaceable cleaning head 200 is connected to the upper end of the host 100 in a detachable manner, and the connection method is simple and convenient, which is convenient for users to replace the replaceable cleaning head 200. Among them, a buckle structure can be provided at the lower end of the main body 210, and a bayonet corresponding to the buckle structure can be provided at the upper end of the host 100 to ensure the stability of the main body 210 and the host 100 after being connected, so as to prevent the two from being easily separated.

[0044] See also Figure 6 and Figure 7 In one embodiment, the cross-sectional area of ​​the first airway opening 310 is smaller than the cross-sectional area of ​​the second airway opening 320 . Specifically, the first airway opening 310 is arranged on the outer wall surface of the replaceable cleaning head 200, and the second airway opening 320 is arranged in the replaceable cleaning head 200 and is connected to the air cavity 400. When the first airway opening 310 serves as the inlet of the airflow, the small-area first airway opening 310 can prevent the water flowing to the outer wall surface of the replaceable cleaning head 200 from entering the air cavity 400 with the suction force of the air pump 120, thereby preventing the air pump 120 from entering the air cavity 400 and ensuring the service life of the air pump 120. At the same time, if the user does not disassemble the replaceable cleaning head 200 for a long time, bacteria will not grow in the air cavity 400 due to the water flowing into the air cavity 400 through the air passage 300; when the first airway opening 310 serves as the outlet of the airflow, the impact force of the airflow flowing out through the small-area first airway opening 310 is relatively small, and the user does not experience the strong impact force of the outflowing airflow, thereby improving the user's usage experience and product satisfaction.

[0045] Further, the cross-sectional area of ​​the first airway opening 310 ranges from 0.1 mm2 to 3 mm2, and the cross-sectional area of ​​the second airway opening 320 ranges from 0.5 mm2 to 6 mm2. Within this range, the airflow has a better effect of passing through the air channel 300. The cross-sectional area of ​​the first airway opening 310 can be 0.2 mm2, 0.5 mm2, 0.8 mm2, 1 mm2, 1.5 mm2, 2 mm2, 2.5 mm2, 3 mm2, and the cross-sectional area of ​​the second airway opening 320 can be 0.5 mm2, 0.6 mm2, 0.8 mm2, 1 mm2, 1.5 mm2, 2 mm2, 2.5 mm2, 3 mm2, 3.5 mm2, 4 mm2, 4.5 mm2, 5 mm2, 5.5 mm2, 6 mm2. Of course, the specific values ​​of the cross-sectional areas of the first airway opening 310 and the second airway opening 320 are not limited to the values ​​listed above. As long as the cross-sectional areas are within the corresponding ranges, they are within the protection scope of the present application. It should be noted that the shapes of the first airway opening 310 and the second airway opening 320 can be square, circular, diamond, trapezoidal, or a combination of multiple shapes or other special shapes, and there is no specific limitation on this.

[0046] See also Figure 6 and Figure 7 In one embodiment, the air passage 300 includes a first air passage section 330 and a second air passage section 340 which are connected and extend in different directions. One end of the first air passage section 330 is a first air passage opening 310, and the other end is connected to the second air passage section 340. The other end of the second air passage section 340 is a second air passage opening 320. Specifically, the air passage 300 of this embodiment includes a first air passage section 330 and a second air passage section 340 which extend in different directions. By setting the air passage 300 into two sections, the flow velocity of the air flow in the air passage 300 is reduced, the noise of the air flow when passing through the air passage 300 is reduced, and the high-speed air flow blown out of the air passage 300 is prevented from directly blowing toward the user's skin, thereby improving the user's use experience and product satisfaction. Among them, the first airway section 330 is set to have a constant diameter, or one end of the first airway opening 310 of the first airway section 330 is set to gradually expand toward the other end, or one end of the first airway opening 310 of the first airway section 330 is set to gradually contract toward the other end, or one end of the first airway opening 310 of the first airway section 330 is set to change diameter toward the other end, and there is no specific restriction on this. Similarly, the second airway section 340 is set to have a constant diameter, or one end of the second airway opening 320 of the second airway section 340 is set to gradually expand toward the other end, or one end of the second airway opening 320 of the second airway section 340 is set to gradually contract toward the other end, or one end of the second airway opening 320 of the second airway section 340 is set to change diameter toward the other end, and there is no specific restriction on this.

[0047] Furthermore, the first air channel section 330 and the second air channel section 340 are perpendicular to each other. This arrangement not only facilitates the production and processing of the air channel 300, but also can reduce the flow rate of the airflow through the air channel 300 to the greatest extent.

[0048] In other embodiments, the first airway segment 330 extends along the radial direction of the main body 210, and the second airway segment 340 extends along the axial direction of the main body 210. That is, the first airway segment and the second airway segment 340 are perpendicular to each other, and because the first airway segment 330 extends along the radial direction of the main body 210, and the second airway segment 340 extends along the axial direction of the main body 210, while reducing the flow rate of the airflow passing through the air channel 300, the efficiency of the airflow inflow or outflow is further improved, thereby improving the air inlet and outlet effects of the nasal cleaner 10.

[0049] It can be understood that the second airway segment 340 has a first direction along the side wall of the main body 210 toward the axis of the main body 210, and a second direction perpendicular to the first direction, and the span of the second airway segment 340 in the first direction is greater than the span of the second airway segment 340 in the second direction. Figure 7 , the first direction is the front-to-back direction of the nasal cleaner 10, the first direction is perpendicular to the second direction, and the second reverse direction is perpendicular to the paper surface, that is, the second direction is a direction perpendicular to both the up-down direction and the front-to-back direction. The span of the second airway segment 340 in the first direction is greater than the span of the second airway segment 340 in the second direction, wherein the span of the second airway segment 340 in the first direction can be understood as the length of the cross-sectional shape of the second airway segment 340, and the span of the second airway segment 340 in the second direction can be understood as the width of the cross-sectional shape of the second airway segment 340, that is, the length of the cross-sectional shape of the second airway segment 340 is greater than the width of the cross-sectional shape of the second airway segment 340, and the cross-sectional shape of the second airway segment 340 can be a rectangle or other shapes, and there is no specific limitation on this.

[0050] Furthermore, the cross-sectional area of ​​the first airway segment 330 is smaller than the cross-sectional area of ​​the second airway segment 340 , and the length of the first airway segment 330 is smaller than the length of the second airway segment 340 , thus ensuring that the airflow through the air channel 300 has a better effect.

[0051] See also Figure 6 and Figure 7It should be noted that the second air duct opening 320 is connected to the air passage cavity 400. The second air duct opening 320 can be opened on the lower end surface of the replaceable cleaning head 200, or on the inner peripheral wall of the replaceable cleaning head 200. When the second air duct opening 320 is opened on the inner peripheral wall of the replaceable cleaning head 200, the air passage 300 is a straight air duct, which is directly formed by penetrating the peripheral wall of the replaceable cleaning head 200. It can be directly penetrated by the peripheral wall of the replaceable cleaning head 200 along the radial direction of the replaceable cleaning head 200, or it can be formed by penetrating the peripheral wall of the replaceable cleaning head 200 obliquely upward or obliquely downward along the radial direction of the replaceable cleaning head 200. There is no specific limitation on this.

[0052] In one embodiment, the air passage 300 extends along the axial direction of the replaceable cleaning head 200, and the air passage 300 is gradually expanded from the first air passage opening 310 to the second air passage opening 320 (not shown in the drawings). Of course, in other embodiments, the air passage 300 can also be gradually contracted or reduced in diameter from the first air passage opening 310 to the second air passage opening 320.

[0053] See also Figure 5 and Figure 6 In one embodiment, the nasal cleaner 10 further includes a touch component 500, which is disposed on one side of the housing 110, and the first airway opening 310 is disposed on the other side of the housing 110. Specifically, the touch component 500 is disposed on the housing 110, and the user operates the touch component 500 to realize the switch and switching of the functions of the nasal cleaner 10, wherein the touch component 500 is a pressing member, and the user controls the nasal cleaner 10 by pressing the touch component 500, and the pressing method has a better hand feel and a better user experience, and it is not easy to be accidentally touched during use, thereby affecting the use. In other embodiments, the touch component 500 can also be set as a touch display screen, and the switch and switching of the functions of the nasal cleaner 10 can be realized by touching, and the touch screen can be kept at the same height as the outer wall surface of the housing 110 to ensure the consistency of the appearance of the nasal cleaner 10.

[0054] In the use state, the housing 110 has a front side facing the user and a rear side opposite to the front side. In order to facilitate the user to switch different modes or control the start and stop by controlling the touch component 500 when using the nasal cleaner 10, the touch component 500 is set on the front side of the housing 110, that is, the side facing the user when in use, so as to facilitate the user. The first airway opening 310 is set on the other side of the housing 110, that is, on the rear side of the housing 110, to prevent the airflow from flowing in or out from the side close to the user, thereby improving the user experience.

[0055] See also Figures 5 to 7Furthermore, the first airway opening 310 is located above the touch control component 500. This arrangement also prevents the user from accidentally blocking the first airway opening 310 with his fingers during the use of the nasal cleaner 10, thereby causing the nasal cleaner 10 to fail to work properly.

[0056] See also Figure 3 In one embodiment, the replaceable cleaning head 200 is a nose washing head 230, and the air outlet of the air pump 120 is connected to the airway interface 220 of the nose washing head 230. Specifically, when the nose washing head 230 is connected to the host 100, the nasal cleaning device 10 is used as a nose washing device. The nose washing head 230 mainly uses the impact force of the physiological saline water flow to discharge the pathogenic bacteria and dirt that have accumulated in the nasal cavity, so that the nasal cavity can restore the normal physiological environment and the self-detoxification function of the nasal cavity, thereby achieving the purpose of protecting the nasal cavity, and can also treat the nasal cavity through liquid medicine.

[0057] See also Figure 3 and Figure 4 Furthermore, the nose wash head 230 includes a cup body 231 and a cup cover 232, the cup cover 232 covers the cup body 231 to form a receiving chamber 233, a partition plate 234 is arranged in the receiving chamber 233, the partition plate 234 divides the receiving chamber into a liquid storage chamber 233a and a waste liquid chamber 233b, and the first airway opening 310 is arranged on the cup body 231 close to the liquid storage chamber 233a.

[0058] Specifically, the end of the cup cover 232 of the nose washing head 230 has a nozzle 235, and the nozzle 235 is connected to the air outlet end of the air pump 120 through the internal air flow channel. When the cup body 231 of the nose washing head 230 is connected to the host 100, an air cavity 400 is formed between the connecting end faces of the nose washing head 230 and the host 100. The cup body 231 is a shell 110 with an open top, and the cup cover 232 is arranged at the open part of the cup body 231, so that a receiving cavity 233 is formed inside the cup body 231, and a partition plate 234 is arranged inside the receiving cavity 233, and the partition plate 234 divides the receiving cavity 233 into a liquid storage cavity 233a and a waste liquid cavity 233b, wherein the liquid storage cavity 233a is used to store clean liquid medicine, and the waste liquid cavity 233b is used to store used waste liquid. Considering that when the user uses it, the handheld nasal cleaner 10 is generally tilted and at a certain angle to the horizontal direction. When working, the clean medicine liquid in the liquid storage chamber 233a will rush into the nasal cavity to clean the nasal cavity and flow out of the nasal cavity. A water collecting ring (not marked in the figure) is provided on the outer edge of the top of the cup cover 232. The water collecting ring and the top of the cup cover 232 form a water collecting tray structure (not marked in the figure). The waste liquid flowing out of the nasal cavity will first flow into the water collecting tray, and then flow downward in the water collecting tray due to gravity. Therefore, the waste liquid chamber 233b is located on the side close to the user when in use, that is, it is arranged close to the front side of the nasal cleaner 10, and the first airway opening 310 is arranged on the cup body 231 close to the side of the liquid storage chamber 233a, that is, it is arranged close to the back side of the nasal cleaner 10. Furthermore, the bottom of the accommodating chamber 233 extends downwardly from one side of the liquid storage chamber 233a to one side of the waste liquid chamber 233b, and the first airway opening 310 is arranged corresponding to the highest point of the bottom of the accommodating chamber 233.

[0059] See also Figure 2 In one embodiment, the replaceable cleaning head 200 is a nose suction head 240, and the air inlet end of the air pump 120 is connected to the airway interface 220 of the nose suction head 240. Specifically, when the nose suction head 240 is connected to the host 100, the nasal cleaner 10 is used as a nose suction device, mainly used to suck the snot of infants, babies and the elderly. These people cannot or are inconvenient to blow their noses by themselves due to various reasons such as intelligence and physical condition. If the snot is not sucked out in time, it will block the nasal passage and cause breathing problems, so a nose suction device is needed to suck out the snot.

[0060] Since the main unit 100 is universal, the user can choose different types of replaceable cleaning heads 200 according to different needs, which not only saves the user the purchase cost but also makes it more convenient to carry.

[0061] The nasal cleaner 10 of the utility model comprises a main unit 100, a replaceable cleaning head 200 and an air passage 300. The main unit 100 comprises a shell 110 and an air pump 120, and the air pump 120 is arranged in the shell 110; the replaceable cleaning head 200 is detachably connected to the main unit 100, and an air passage 400 is formed between the replaceable cleaning head 200 and the main unit 100; the lower end of the replaceable cleaning head 200 has an air passage interface 220, one of the air inlet end of the air pump 120 and the air outlet end of the air pump 120 is connected to the air passage interface 220, and the other is connected to the air passage 400; the air passage 300 is arranged on the replaceable cleaning head 200, and the air passage 300 has a first air passage opening 310 and a second air passage opening 320 that are connected to each other, the first air passage opening 310 is arranged on the outer wall surface of the replaceable cleaning head 200 and is connected to the outside, and the second air passage opening 320 is connected to the air passage cavity 400. By setting one end of the air passage 300 on the outer wall surface of the replaceable cleaning head 200, on the one hand, the air inlet and outlet effects of the nasal cleaner 10 are improved. On the other hand, since the first airway opening 310 is opened on the outer wall surface of the replaceable cleaning head 200, the outer wall surface of the replaceable cleaning head 200 is a smooth plane. Water flowing to the outer wall surface of the replaceable cleaning head 200 will flow downstream and will not easily flow into the interior of the nasal cleaner 10 along the air passage 300, thereby preventing water from entering the air pump 120 and ensuring the service life of the air pump 120.

[0062] The above description is only an optional embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A nasal cleaner, characterized in that: The nasal cleaner comprises: A host, the host comprising a housing and an air pump, the air pump being arranged in the housing; A replaceable cleaning head is detachably connected to the main unit, and an air passage cavity is formed between the replaceable cleaning head and the main unit; the lower end of the replaceable cleaning head has an airway interface, one of the air inlet end of the air pump and the air outlet end of the air pump is connected to the airway interface, and the other is connected to the air passage cavity; and An air passage is arranged on the replaceable cleaning head, and the air passage has a first airway opening and a second airway opening that are connected to each other. The first airway opening is arranged on the outer wall surface of the replaceable cleaning head and is connected to the outside, and the second airway opening is connected to the air passage cavity.

2. The nasal cleaning device according to claim 1, characterized in that: The replaceable cleaning head comprises a main body, the lower end of the main body is detachably connected to the upper end of the host, and the second airway opening is arranged at the bottom of the main body.

3. The nasal cleaning device according to claim 2, characterized in that: The cross-sectional area of ​​the first airway opening is smaller than the cross-sectional area of ​​the second airway opening.

4. The nasal cleaning device according to claim 3, characterized in that: The cross-sectional area of ​​the first airway opening is 0.1 mm 2 -3 mm 2 The cross-sectional area of ​​the second airway opening is 0.5 mm 2 -6 mm 2 .

5. The nasal cleaning device according to claim 3, characterized in that: The air passage includes a first airway segment and a second airway segment which are connected and extend in different directions. One end of the first airway segment is the first airway opening, and the other end is connected to the second airway segment. The other end of the second airway segment is the second airway opening.

6. The nasal cleaning device according to claim 5, characterized in that: The first airway segment and the second airway segment are perpendicular to each other.

7. The nasal cleaning device according to claim 5, characterized in that: The first air passage segment extends in a radial direction of the main body, and the second air passage segment extends in an axial direction of the main body.

8. The nasal cleaning device according to claim 7, characterized in that: The second air passage segment has a first direction along the side wall of the main body toward the axis of the main body, and a second direction perpendicular to the first direction, and a span of the second air passage segment in the first direction is greater than a span of the second air passage segment in the second direction.

9. The nasal cleaning device according to claim 1, characterized in that: The air passage is formed by penetrating the outer wall of the replaceable cleaning head outer wall and facing the inner wall surface of the replaceable cleaning head outer wall.

10. The nasal cleaning device according to claim 9, characterized in that: The air passage extends along the axial direction of the replaceable cleaning head, and the air passage is gradually expanded from the first air passage opening to the second air passage opening.

11. The nasal cleaning device according to any one of claims 1 to 10, characterized in that: The nasal cavity cleaner further includes a touch control component, which is disposed on one side of the shell, and the first airway opening is disposed on the other side of the shell.

12. The nasal cleaning device according to claim 11, characterized in that: The first airway opening is located above the touch control component.

13. The nasal cleaning device according to any one of claims 1 to 10, characterized in that: The replaceable cleaning head is a nose washing head, and the air outlet end of the air pump is connected to the airway interface of the nose washing head.

14. The nasal cleaning device according to claim 13, characterized in that: The nasal wash head includes a cup body and a cup cover, wherein the cup cover covers the cup body to form a receiving chamber, wherein a partition plate is arranged in the receiving chamber, and the partition plate divides the receiving chamber into a liquid storage chamber and a waste liquid chamber, and the first airway opening is arranged on the cup body close to one side of the liquid storage chamber.

15. The nasal cleaning device according to claim 14, characterized in that: The bottom of the accommodating chamber extends downwardly and obliquely from one side of the liquid storage chamber to one side of the waste liquid chamber, and the first airway opening is arranged corresponding to the highest point of the bottom of the accommodating chamber.

16. The nasal cleaning device according to any one of claims 1 to 10, characterized in that: The replaceable cleaning head is a nasal suction head, and the air inlet end of the air pump is connected to the airway interface of the nasal suction head.

Images